function setFooter() {
	
	var gaucheHeight=document.getElementById('g_contenu').offsetHeight;
	// var centreHeight=document.getElementById('c_contenu').offsetHeight;
	var droiteHeight=document.getElementById('d_contenu').offsetHeight;
	var heightGDMax = Math.max(droiteHeight, gaucheHeight);
	// var heightCDMax = Math.max(droiteHeight, centreHeight);
	// if (heightGDMax>centreHeight){
	//   document.getElementById('c_contenu').style.height=(heightGDMax)+'px';
	// }
	if (heightGDMax>droiteHeight) {
	   document.getElementById('d_contenu').style.height=(heightGDMax)+'px';
	}
	else {
		document.getElementById('g_contenu').style.height=(heightGDMax)+'px';
		document.getElementById('c_contenu').style.height=(heightGDMax)+'px';
	}
	document.getElementById('pre-footer').style.top=(heightGDMax)+'px';
	heightGDMax=heightGDMax+11;
	document.getElementById('footer').style.top=(heightGDMax)+'px';
}